MySQL 存储过程,游标,临时表创建

-- --------------------------------------------------------------------------------

-- Routine DDL

-- Note: comments before and after the routine body will not be stored by the server

-- --------------------------------------------------------------------------------

DELIMITER $$



CREATE DEFINER=`root`@`localhost` PROCEDURE `filter_record_time`(startTime timestamp, endTime timestamp, pointIndex int)

BEGIN  

        declare _recordtime timestamp;

        declare _pointIndex smallint;

        declare _value double;

        declare _result text;

        declare _previoustime timestamp;

        DECLARE done INT DEFAULT FALSE;

        



        declare fetchSeqCursor cursor for select distinct RecordTime,PointIndex,Value

                                            from flow_record 

                                           where recordtime >= startTime 

                                             and recordtime < endTime

                                             and pointIndex = pointIndex 

                                             and recordtime is not null

                                        order by recordtime;

        

        DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;



        create table if not exists filter_record_time_temp(timeFrom timestamp, timeTo timestamp, times int);

    

        open fetchSeqCursor;

        

        

        seq_loop:loop

            fetch fetchSeqCursor into _recordtime, _pointIndex, _value;



            IF done THEN

                LEAVE seq_loop;

            END IF;



            if _previoustime is null then

                if _recordtime <> startTime then

                    insert into filter_record_time_temp select startTime timefrom, _recordtime timeto, 

                            cast((unix_timestamp(_recordtime) - unix_timestamp(startTime) - 120) / 120 as signed)  times;

                end if;

            else 

                if unix_timestamp(_previoustime) + 120 < unix_timestamp(_recordtime) then

                    insert into filter_record_time_temp select _previoustime timefrom, _recordtime timeto,

                            cast((unix_timestamp(_recordtime) - unix_timestamp(_previoustime) - 120) / 120 as signed) times;

                end if;

            end if;



            set _previoustime = _recordtime;

        end loop;



        close fetchSeqCursor; 



        if unix_timestamp(_previoustime) + 120 < unix_timestamp(endTime) then

            insert into filter_record_time_temp select _previoustime timefrom, endTime timeto,

                            cast((unix_timestamp(endTime) - unix_timestamp(_previoustime) - 120) / 120 as signed) times;

        end if;



        select * from filter_record_time_temp;



        drop table if exists filter_record_time_temp;



END

真尼玛烦人,各个数据库sql语法都不一致,写一点东西查半天资料,耽误时间.